package com.itheima.reggie.Controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.impl.EmployeeServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;


@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeServiceImpl employeeServiceImpl;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {

        //1、将页面提交的密码password进行md5加密处理

        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2.根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeServiceImpl.getOne(queryWrapper);
        //3.如果没有查询到则返回登录失败的结果
        if (emp == null) {
            return R.error("登录失败");
        }
        //4.密码比对,如果不一致则返回登录失败的结果
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败");
        }
        //5.查看员工的状态.如果是已禁用的状态,则返回登录失败的结果
        if (emp.getStatus() == 0) {
            return R.error("员工被禁用");
        }
        //6.登录成功,将员工的id存入Session并返回登录 成功的结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);

    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");

    }


    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增员工,员工信息{}", employee.toString());
        //设置初始密码123456,需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        //获得当前登录用户的id
        Long empId = (long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(1l);
//        employee.setUpdateUser(1l);


        employeeServiceImpl.save(employee);
        return R.success("新增员工成功");
    }

    @GetMapping("/page")
    public R page(int page, int pageSize, String name) {
        log.info("page = {},pageSize = {},name = {}", page, pageSize, name);

        //构造分页构造器
        Page<Employee> pageInfo = new Page<>(page, pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();

        //添加过滤条件
        queryWrapper.like(name != null && !name.equals(""), Employee::getName, name);

        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeServiceImpl.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }

    @GetMapping("/{id}")
    public R getById(@PathVariable Long id) {
        log.info("id查询员工信息");
        Employee employee = employeeServiceImpl.getById(id);
        if (employee != null) {
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }

    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee) {

        log.info(employee.toString());

        Long empId = (Long) request.getSession().getAttribute("employee");

//            employee.setUpdateTime(LocalDateTime.now());
//            employee.setUpdateUser(empId);
        employeeServiceImpl.updateById(employee);

        return R.success("员工信息");

    }

}